11 Knock on or Throw forward. Sometimes you accidentally mishandle the ball and knock it forwards off your hands or arms. You are allowed to try and regain control. If you catch it again before it touches another player or touches the ground you can play on. Otherwise it is a knock on and play may be stopped.
Surgical Orthodontics. Surgical orthodontics, also known as orthognathic surgery, is a type of orthodontic treatment used to correct severe cases that include bad bites, jaw bone abnormalities, and malocclusion. Oral and maxillofacial surgery is one of the nine recognized dental specialties.
Orthodontics at Mayo Clinic. Orthodontics and dentofacial orthopedics, as the specialty is called, is the branch of dentistry that specializes in the diagnosis, prevention and treatment of dental and facial irregularities. The technical term for these problems is malocclusion, which means bad bite.. The practice of orthodontics requires professional skill in the design, application and control of corrective appliances (braces) to bring teeth, lips and jaws into proper alignment and achieve facial balance.